With a large music market and some of the world’s highest prices for physical releases, Japan has been very slow in adapting to digital distribution. Rights holders are finally warming up to the idea, though, and it doesn’t look like it’s ruining the industry in Japan. What downloadable music does seem to be doing, though, is splitting the country’s pop music market into two distinct parts, as the lists of Japan’s top 20 single downloads and CD purchases for the year are almost completely different.

For many of Japan’s most successful music acts, there’s a huge gap between their popularity at home and abroad. Five-man vocal unit Arashi has been at the top of Japan’s boy band heap for years, and while they’ve picked up a few ardent devotees in the U.S., their fan base there is miniscule compared to their legions of followers in Japan.

This became even clearer than usual last week, when Arashi had a concert in Hawaii. The effective cost of a ticket bought in Japan for the event calculates out to some 100,000 yen (US$925), but in Hawaii, you could pick up a ticket for less than a fifth of that price.

Arashi is a common Japanese word meaning “storm” but utter it to any Japanese person and images of the top male idol unit in the country will likely cross their minds before those of cloudy skies and overflowing gutters. Not a day goes by without Arashi appearing on some television show, and every album they release is pretty much guaranteed to hit number one.

However, the thing is… we don’t understand why they are so successful. Not to take anything away from Arashi as performers – they’re good looking chaps who have a sound easier to digest than a cup of warm yogurt. We just don’t get why they stand above all of the other boy bands on the scene in Japan who seem to be and do exactly the same thing. So, we sent our reporter P.K. Sunjun to interview Arashi fans and get to the bottom of the group’s appeal.

Diehard fans of popular Japanese idol groups like Arashi, Hey! Say! Jump! and AKB48 may want to double-check that signed poster they bought online. Japan’s Yomiuri Shimbun reported that Chiba prefectural police arrested three people last week for an elaborate idol merchandise scam. It seems that the scheming trio forged signatures of eight popular idol groups onto merchandise, put the fake goods on online auctions, then defrauded the winning bidder. Police believe that the three made about 3,700 of these items, which duped people out of 6,700,000 yen (US$67,000)!